package com.attilax.util;
import java.util.regex.Matcher; 
import java.util.regex.Pattern; 
 
 
public class IfHanZi { 
 
  
 public static void main(String[] args) { 
 
  //方法一： 
 
  String s1 = "我是中国人"; 
  String s2 = "imchinese"; 
  String s3 = "im中国人"; 
  System.out.println(s1 + ":" + new String(s1).length()); 
  System.out.println(s2 + ":" + new String(s2).length()); 
  System.out.println(s3 + ":" + new String(s3).length()); 
  System.out.println((s1.getBytes().length == s1.length()) ? "s1无汉字" 
    : "s1有汉字"); 
  System.out.println((s2.getBytes().length == s2.length()) ? "s2无汉字" 
    : "s2有汉字"); 
  System.out.println((s3.getBytes().length == s3.length()) ? "s3无汉字" 
    : "s3有汉字"); 
 
  //方法二： 
 
  int count = 0; 
  String regEx = "[\\u4e00-\\u9fa5]"; 
  String str = "中文fd我是中国人as "; 
  Pattern p = Pattern.compile(regEx); 
  Matcher m = p.matcher(str); 
  while (m.find()) { 
   for (int i = 0; i <= m.groupCount(); i++) { 
    count = count + 1; 
   } 
  } 
  System.out.println("共有 " + count + "个 "); 
 } 
} 
 